Problem Statement

There are N people in an xy-plane. Person i is at (X_i, Y_i). The positions of all people are different.
We have a string S of length N consisting of L and R.
If S_i = R, Person i is facing right; if S_i = L, Person i is facing left. All people simultaneously start walking in the direction they are facing. Here, right and left correspond to the positive and negative x-direction, respectively.
For example, the figure below shows the movement of people when (X_1, Y_1) = (2, 3), (X_2, Y_2) = (1, 1), (X_3, Y_3) =(4, 1), S = RRL.

We say that there is a collision when two people walking in opposite directions come to the same position. Will there be a collision if all people continue walking indefinitely?

Input

Input is given from Standard Input in the following format:
N
X_1 Y_1
X_2 Y_2
$\vdots$
X_N Y_N
S

Output

If there will be a collision, print Yes; otherwise, print No.

Constraints

• $2 \leq N \leq 2 \times 10^5$
• $0 \leq X_i \leq 10^9$
• $0 \leq Y_i \leq 10^9$
• $(X_i, Y_i) \neq (X_j, Y_j)$ if $i \neq j$.
• All X_i and Y_i are integers.
• S is a string of length N consisting of L and R.

Sample Input 1

3
2 3
1 1
4 1
RRL

Sample Output 1

Yes

This input corresponds to the example in the Problem Statement.
If all people continue walking, Person 2 and Person 3 will collide. Thus, Yes should be printed.

Sample Input 2

2
1 1
2 1
RR

Sample Output 2

No

Since Person 1 and Person 2 walk in the same direction, they never collide.

Sample Input 3

10
1 3
1 4
0 0
0 2
0 4
3 1
2 4
4 2
4 4
3 3
RLRRRLRLRR

Sample Output 3

Yes

见题面 Input 部分

见题面 Output 部分